SCSI, Terminators Help

[Ancalimon]

First of all let me tell you that I am very unfamiliar with SCSI drives.

I own an A4000T with a SCSI2 interface and a CStormPPC with scsi3.

I had a 20gb ide hdd which blew up a year ago. And since that I had been using my 3.2 gb IDE hdd. The 1gb scsi drive died a few months later I bought this machine. I bought a new 120gb ata100 hdd and connected it to CStormPPC`s SCSI with a SCSIDE converter. It working fastly and properly now. But I haven`t used any terminator on the chain one end of the cable is connected to CStormPPC and on the next empty slot is the hdd. Though sometimes i get a pfs3 error and hdd is unwritable after a reset its ok. Does this happen because i have no terminator on the cable?

I also have a cdrewriter but its on the 4000Ts scsi2 interface. Is it a better idea to use it on the CStormPPC`s SCSI?

Current config is like this:

CStormPPC-----120gb hdd+SCSIDE--empty--empty

should it be like this? :

120gb hdd+scside----CStormPPC----terminator

[KennyR]

I don't know much about the A4000T SCSI, but generally both sides of the SCSI chain should be terminated. Use active terminators only. If your HD contains a passive terminator, disable it.

Terminator -> Devices -> Controller -> Terminator

I also have a cdrewriter but its on the 4000Ts scsi2 interface. Is it a better idea to use it on the CStormPPC`s SCSI?

Yes! It is a lot faster, for one thing!

[Plaz]

KennyR has the right layout...
Terminator -> Devices -> Controller -> Terminator
But I've also found my old 3000 and 4000 to be a bit abnormal. This configuration has worked ok for me in both cases.
Controller(no terms)->Device(no terms)->Device(with terms)
I can only guess the differences in some drives may match up oldly with the ami controllers.
Normally it would go...
Controller(with terms)->Device(no terms)->Device(with terms)


Plaz

[destro]

Hello There.  When working with SCSI Equipment, if you  Remember that the First SCSI Device & The Last SCSI Device are the Only devices that Need Terminartion, It will save you alot of headache.

Also be very familiar with the SCSI Controller Catd.
Some SCSI Controllers auto-terminate the first device.
Generally when you have troubles with the scsi chain it's do to Extra termination in the scsi chain where it does not belong.

I generally read up on all of my scsi equipment before setting up the scsi chain.  I make sure to know if the SCSI Controller has auto-termination or not.

Knowing if your SCSI Controller has auto-termination or not will help to avoid alot of headaches in the long run.

Take care.